Improvement in steam-generators



3 Shee'ts--Sheet l.4 RYAN.

Steam Generaturs.-

Patented July 29,1873.

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WITNESSES.

3 Sheets--Sheel 2.

RYAN.

Steam Generators.

Patented July 29,1873.

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JOSEPH RYAN, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN STEAM-GENERATORS.

Specification forming part of Letters Patent No. 141,239, d'ated July 29, 1873 application filed August 22, 1872. A

To all whom it may concern Beit known that I, JOSEPH RYAN, of St. Louis, in the county of St. Louis and State of Missouri, have made a new and useful Improvement in Steam-Generators for Steam- Boilers; and I do hereby declare that the following is a full and true description thereof, reference being had to the accompanying drawings, and to the letters ot' reference marked thereon.

In order to adapt my improved apparatus to the various capacities of boilers, their location, their connection with or Without drums, an-d the different formations of tire-beds, and also as regards other ordinary appurtenances belonging to steam-boilers, and especially to form a more simple, readily-applied, and more practically eiective process of generating steam-also, to insurea perfect circulation, and

vestablish a more uniform equalization of pressures within and from boiler to boiler-the nature of this invention can therefore be stated to relate to the peculiar combination of pipes and parts with relation to boilers or drums, as will hereinafter more fully appear.

To enable those herein skilled to make and use my said improvements, I will now more fully describe the same, referring to Figures 1 and 2, Sheet 1, as transverse sections; Figs. 3 and 4, Sheet 2, as longitudinal sectional elevations; Figs. 5 and 6, Sheet 3, as longitudinal sections; While Fig. 7 is a transverse section of saddle, and Fig. 8 side elevation of same.

A represents the lire-bed; A', steam-boilers; A2, mnd-drums, connecting to boilers by legs a.

A1. The circulator B can be connected, by proper legs or pipes b, to mud-drums A2, (see Figs. 1, 5, and 6,) or, by branch legs b1, directly to lower side of boilers, as shown in Fig. 2. To the main circulator B I provide one or more upright circulating-pipes, B. (See Figs. 1, 2, 3, 4, and 5.) In order, however, to form a more perfect steam-tight joint, the connection of the vertical pipes B' to top of circulators B will be by a saddle, b2, formed with a threaded head, b3, as shown in Figs. 7 and 8. The saddle b2 is properly bolted or riveted to the out and inside top of circulator B, while B represents my improved main ciry, culating-pipe, arranged on each sideof boilers the screw-head b3 is fitted to receive and secure the lower ends of the upright circulator B', as indicated in Figs. 1 and 2. Especially is this improved Ijoint advantageous where the l joints or connections are exposed to the heat ofthe furnace or re-bed. The upright pipes B' connect, further, to the top of the boiler joint being completed by uniting said iianges by rivets or bolts, as ordinary.

rlhe connection ofthe top-branch pipes O to boilers can be directly made in any ordinary steam-tight manner. My object, however, being to avoid all undue turmoil, spraying, and foaming within boiler, and especially to guard against the injurious effects arising from the ordinary indirect introduction of circulation. and steam to a cold-water surface, and its effects passing through the circulating apparatus, I have provided the top pipey C with extensions or bonnets c2, fitted to reach within and in close proximity to the waterline, as clearly shown in Fig. 2.

By such au arrangement and construction of parts, the circulation passes from boilers through main circulating-pipe B; from thence passes through upright pipes B', and discharges through top pipes O into and near the water-line of boiler. Al'so, it will be noted that whatever excess of water (owing to the expansive force of steam and unequal distribution of heat to boilers) exists in one or any boiler, is counteracted by the circulation through the circulating apparatus, which thus equalizes the pressures from boiler to boiler, and vestablishes a uniform process of generation. The circulator arranged within fire-bed utilizes the heat and serves generation.

Fig. 3 shows the arrangement of main circulator B, also within the fire-bed, but connected to mud-drums A2. i In this case the circulation is taken from the drums and discharges through one or more legs or standpipes, B', into the bottom of boiler. Short pipes can thus be used, and the entire circulating apparatus be arranged out of the way of boilers. Also, this arrangement dispenses with drum-legs, and is well ladapted for that form of lire-beds. Further, it Will be noted that the upright pipes B and top pipes C can be used in this form, so that the discharge can be effected either at bottom, or side, or top of boilers.

In Fig. 4c the main circulator B is shown arranged entirely Without the fire-bed, the upright pipes B connecting at its lower end to end side of the drum A2, and discharging through goose -neck pipe C in the top of boiler. By this arrangement the connectingjoints are outside of the re, and the front legs are protected by taking the circulation at front from drums.

In Fig. 5 the circulator B is shown connected with the legs of drums A2, and the end eX- tended and provided at its extremity with a proper hand-ho] d plate, for purpose of cleansing said pipe. The circulation discharges through vertical pipe B and top pipe O into top of boiler. By this arrangement, a shorter circulator can be used and adapted to pass merely from rear end of boiler to back end of the gratebars.

In Fig. 6 the distinguishing peculiarity consists in connecting to the rear muddrum A2,

in an inclined position, the main circulator B, and further connecting same at its forward end, by branch pipe b, to forward side of boilers. The circulation in this case is therefore obtained from the coldest part of the boiler, and discharged into the hottest part thereof.

My improved apparatus, in its principle of construction, can thus be arranged, applied, and operated Without reference to any particular arrangement of the circulating-pipes, as these, being fev;T and simple, can readily be varied in location, manner, and connection, as the emergencies of each case demand.

Having thus fully described my said improvements, What I claim is- The circulating-pipes B, vertical pipes B, top discharge-pipe C, saddle -joint b2, screwheads b3, ange-joints c c1, arranged in combination either directly with boilers or drums, as described and shown.

In testimony of said invention I have hereunto set my hand.

JOSEPH RYAN.

W'itnesses: v

WILLIAM W. HERTHEL, ROBERT BURNS. 

